Misanthropy and nihilism do not belong in politics

If you don't care about or hate humanity, or just overall genuinely don't believe in any chance at making a better future/life for others, and talk down anyone having any hope or progress in this world, you should not have an influence over how society should function. All this does is at best demotivate us and make us capitulate to harmful groups that are motivated to enact change for their own gain, and at worst cause a lot of harm that wouldn't exist if you just cared about others. Do note that I have almost fallen down the nihilism pipeline and so I can be sympathetic towards people that find themselves going through it too (depends on some other factors ofc) but I am just not sympathetic towards either stance