FPTP, particularly with partisan primaries, has the misfeature that you need to rally the base in order to win the crowded primary field. This leaves only extremist candidates heading toward the general election. In a country like the U.S. where voting is not compulsory, this turns off the moderate electorate, who are forced to choose between two extreme candidates that both seem batshit crazy, and encourages them to stay home.

Nonetheless, an individual citizen still has to support some political cause (even if you are completely politically disinterested, there are multiple factions claiming that your inaction is tantamount to support for their opponents). Whatever information about the world you think is true, or whatever political cause you think is in your interests, someone else can point to a monied interest who supports similar things. There's no way to use the absence of big money as a heuristic for what political causes are good or bad for you to support.

Voting yourself other people's stuff would be that the safety net is bare minimum to keep people who are going through unexpected issues alive. But no one gets to live in the social safety net. No one who is receiving these kinds of benefits from the government should expect name brand anything, or to even be able to choose what food to eat, or to travel, or even pick who you socialize with. If you want to eat steak, you have to be a net producer. If you want name brand clothing, be a net producer. If you want to go to the beach, be a net producer.

Everyone who should pay some amount of tax, and anytime there is an increase in government spending, that amount that they are taxed should go up. If there is a decrease in government spending, it can go down. But everyone pays something. People need to have skin in the game. The US's current situation where nearly half the country are not net tax payers is not sustainable. Anything that can't go on forever, won't. So the country should ease into better situation, where the country is a nation of producers and not a nation of consumers, instead of hitting a brick wall where suddenly your ration of beans just stop.