1. His political party is on the fringes of the left, advocating for very high taxation (reaching 55% at income >= $63k/yr, 75% at >= $125k) - this combined with the general Polish lack of trust towards politicians (and our ~20-ish% total income tax loopholes) practically guarantees that they won't ever get any real power.
2. Current government openly admitted to spying on the opposition and introduced an anti-abortion law that already killed a couple women, as hospitals decide to play it safe and wait until the fetus dies. And they dismantled the separation of powers. And probably already stole hundreds of millions of dollars, with independent investigations confirming at least tens. Our politics are so messed up that absolutely no one will bat an eye at a 7 years old non-PC joke.