All these anti trans laws are already happening under 
The best summary looks to me like:
- State-level Republicans are aggressively passing anti-trans bills
- State-level Democrats are occasionally passing trans protection bills
- National-level Republicans are banging the table for anti-trans bills
- National-level Democrats (collectively, at least) are unable/unwilling to pass national trans protection legislation
- A rabidly reactionary judiciary (certainly at the federal level) is eroding protections that exist, and salivating at the prospect of more damage; Democrats have no answer to this
- Rank-and-file Republicans range from making attack helicopter jokes to genocidal jokes
- Rank-and-file Democrats range from making attack helicopter jokes to doing meaningful work supporting trans people
You could say much the same for abortion, too.
There are some differences, but not nearly enough, and it's easy to see how one person can look at this and say Dems are obviously better (focusing on state stuff, rank-and-file attitudes, proposed national legislation) while another can look at this and say whatever Dems are doing (focusing mostly on national politics and losing the judiciary) is not nearly enough.