That's not how it works. As long as FPTP exists, it will lock us into two parties. We have had multiple party systems that all demonstrated this principle. Some places are experimenting with alternatives on the state and local level, but it will take time.
You’ve already got one response to this which is correct. I want to add to it to help explain how FPTP voting systems result in a 2 party system and simply voting for another party does not solve the issue.
But first you’re either aware of the problem and want to encourage people to vote third party while pretending not to know how the system works or you’re actually just ignorant to the issue.
I don’t normally like video links in discussions like this but this one is especially good and is only 6.5 mins.
The presidential vote is where it's fixed. Republicans have already moved to ban other voting types calling them 'too complicated'. Democrats will join them the second their duopoly is endangered.
Just like how they crack down on student protests and block ballot access for third parties, Democrats have no standards either.
Strange you're including Republican in there. You believe Biden is winning right? So your money should be on Biden and any other winner would make you lose.