That kind of attitude lingers dangerously close to the everything-is-a-conspiracy-by-the-shadowy-cabal line of reasoning. Biden's a Catholic, but it's certainly not "obvious" that he's "intentionally letting the nation slip". You can scroll down barely a page on whitehouse.gov and watch the president commit to restoring the standard of Roe v Wade. It's under the statements in favor of Pride, committing to combating gun deaths, lowering housing costs, and protecting pensions. Joe Biden's executive orders have been the most progressive executive action since Roosevelt.
Here's something a lot of non-religious folks might not know: the evangelical right? They hate Catholics. The MAGAs hate them ideologically, but the ones running the show hate them because the Catholic Church is their competition when it comes to running private schools and otherwise lucrative community support institutions. Biden is absolutely not on their side, theologically or otherwise.