I've been reading some articles recently how to deal with feminists (who again are leftists and motivated by envy and therefore the desire to destroy men). Some advise you to be indifferent to them. That's not enough, because they'll still attack you.
Living well will drive them insane with envy and they'll still attack. So it has to be a combination of living well, being indifferent to them - and yet still attacking them ("the best defense is a good offence").
Old cliches wouldn't exist unless there was much truth to them...such as the unhappy don't want anyone to be happy.