Glad they're taking off the gloves a little, but it's always been a non-option to just make our lives significantly and irrevocably better like M4A or the PRO act and although they're good at trying and failing, they never talk about the consequences as dire as they actually are with few exceptions.
Because the goal of voting is to influence governance. It is not an end unto itself. Yes, you can vote for other parties. You can also vote for Donald Duck. It just has no effect.
In terms of which party will govern, there are two options. Choose the one you despise least. And then do whatever you think is necessary to end the duopoly outside of the general election.