Your logic is flawed because we live in a two party system. Third parties in our current setup are only spoilers. We need to address the foundational issues FIRST and then we can get more than even 3 parties in. Otherwise you’re going to get republicans fixing the system so they never leave power and then we’re all fucked forever with no chance of improvement.
You clearly don’t understand the meaning of first. And this is why progressives and the Green Party never make any headway. You think you’re working in a system that’s fair and will work if you just try hard enough. Except you only end up fighting the people most loosely aligned to yall and you end up letting the country move further and further to the right.