This may sound like a hope pill (and maybe a cope) but I don't think conservatives lost the culture war, what they lost was a culture war battle (big difference between a culture war battle and the culture war itself) to reignite the English Only Movement.
Now America has always had a complex relationship with English and immigrant/native american languages since the founding of the United States. The English Only movement originated in the 1980's officially where some right-wingers at the time noted that every other country has their own official language and primarily speaks that language so why can't America just make English as the official language and have everyone primarily speak English? This movement never really went anywhere and faded away by the time the 1990's rolled out but you still have some right-wingers (Trump included) that still believes in these ideals.
So the Superbowl concert with Bad Bunny isn't the cause but the symptom of how Americans see immigrant languages now. Back in my day, Americans were very interested in British and French culture (it's why French became a popular choice for students in the 1980's and the 1990's). Now and days? It's Latin American culture than has taken the center stage.
Since the late-1990's, Americans shown more interest in Spanish because learning a second language to communicate with latino immigrants and doing business in latin americsn countries is a huge benefit for your everyday American (especially as the United States is the next door neighbor of latin america in general).
Spanish TV has gotten more popular because it's far more exciting than the sanitized and boring mess that is American English TV, latin american food is popular because many White Americans find it interesting and delicious for the same reasons why white British people find Indian food delicious, soccer has become more popular in America compared to how it was 20 years ago (even Trump himself has praised soccer and praised Fifa comapred to how he now bashes on American Football and how he trashes on the NFL for being too woke for him), and even anime (a form of Japanese entertainment) has gotten popular in tyhe United States partly because anime and manga is very big with latinos as well (I can argue that Japanese pop culture is bigger in Latin America compared to the United States; because the Mexican cartels and gangs will drop their guns for a day just so they can watch the latest episode or movie of Dragon Ball).
I can make the argument that latinos are far more beneficial for Christianity in America where latinos are far more likely to be religious (Catholicism and Evangelical Christianity) is far more prevalent with latinos compared to White Americans these days.
I've already said it before here but it's not that the demographic change hasn't happened, it's already happened and this trend cannot be reversed unless tomorrow America gets its own Hitler to reverse this trend by force (Trump will not do this because Trump isn't Hitler and he never had what it takes to be a Hitler).
However, even though the attempt by white right-wing conservatives to revive the English Only Movement has clearly failed, this doesn't mean that right-wing politics will suddenly die just because Americans now embrace Spanish as part of American pop culture (because right-wing politics doesn't know any language).
If you don't believe me, a good starting point is the state of Florida. The state of Florida has a sizable latino population but Florida still overwhelmingly votes Republican. Why? Because the Florida GOP did what other state level GOP parties failed to do, by embracing latino voters. This is also how Trump managed to win the 2024 election because he knew he needed latino voters to get on board with him too. Both Trump and the Florida GOP clearly have a winning playbook while the other GOP-lead states are still stuck in their outdated ways.
If America becomes less white and starts to get hipanized? Fine, the most logical thing to do is to embrace the brown latinos and offer them El Generalisimo politics instead.
So if America is going to keep its browns, you may as well get the browns to vote for a Nayib Bukele (El Salvador) or a Javier Milei (Argentina) into public office in America instead of a Justin Trueau in the long term. For right-wing politics to survive in America, sell the latinos a Caudillo to rule America.