Voting is not the same as approval. We can vote and still rally against the legitimacy of authority.
Yes the state is corrupt, yes the choice is largely superficial. But if we are going to get poison anyway i prefer to exercise any action i can to influence even a little who does the poisoning.
I would not recommend for people to casually start trimming plantlife in the wild. /s
Unironically though there might be lots of insects living within that ecosystem that rely on it. If you don't need something for a dish or specific resource, just leave it alone.