I once heard a quote (I think in the name of some great Rav, but I can’t remember who), I can’t remember the exact quote, but it was something along the lines of “A leader who has no enemies is not a leader.”
If a leader has no enemies, it shows that he must be giving into everyone all the time, and that would make him a follower, not a leader. A true leader has to be able to be strong enough to act against the tide and do things that are not popular!
You may mean this:
“You have enemies? Good. That means you’ve stood up for something, sometime in your life.”
Actually, I think it’s in R’ Yisrael Salanter’s name that it is said, “A rav whose congregation doesn’t want to get rid of him isn’t a rav, and a rav whose congregation succeeds in getting rid of him isn’t a man.”
(The “stood up for something” quote is from Winston Churchill.)