I will stipulate that these are two separate and distinct types of act:

reasonable people could conclude that "doing things that make it more likely Trump will be elected President" could reasonably be called "just like voting for Trump"

If they're separate and different, no, you cannot reasonably say one is just like the other.

all of those acts make it more likely that Trump will be elected President than Biden

If you stuck with this you'd have a better point, but still not a good one. You didn't donate every cent you have to Biden, right? Well that made it more likely that Trump will be elected, too. If you think supporting Biden really moves the needle maybe you can be criticized for not doing more, but it would be ridiculous to say not donating your life savings to Biden = voting for Trump.

And of course Biden doesn't actually move the needle much, if at all.