Correct, no one would support Luigi for murdering a homeless person. Support for Luigi is a social proxy. People don’t feel like they can change the system peacefully anymore. When that happens, you’re right, an angry mob can become judge jury and executioner. It is up to the system to reform itself or fail, not the masses to calm down.
Educate the next generation. My kids demonize taxes based off a short video but then get a quick education. Taxes aren’t the devil, the rich dudes who aren’t paying their share are causing your burden to be higher. Billionaires aren’t always the enemy, but look at Amazon wages and it’s an easy way to show them that hoarded wealth generally comes from keeping others down. It takes a bit longer, but elders are the only entity that can counter the bullshit they’re being fed.