Yeah, I’m all for massive reform, and I’m definitely no fan of Biden, but compared to Trump he’s the only option. It a choice between having a broken country, or not having a country at all. (To not even mention the issues regarding the climate, which clearly Trump’s the worst choice for.)
Doesn’t matter why you’re dissatisfied with him as long as you know that Trump would be worse on all issues (when he’s not focused on trying to expatriate natural born citizens and getting revenge on the justice system for holding him accountable for his crimes.)