In real life, I've found its better to just hold your ground. State your opinion, but make it clear you're not changing it or looking to change others'. Contrived Example:

Them: "Hawaiian pizza is literally the best pizza in the whole world. Everyone who disagrees is dumb."

You: "No way, pineapple on pizza is horrible!"

Them: "You just haven't tried good Hawaiian."

You: "I've tried it a few times, but never liked it. Just not for me I guess."

The only thing I'd maybe change is in your first reply maybe say "I don't like pineapple on pizza" rather than a general statement, but I gave a messy example because real world conversations are messy. You can't expect to say everything perfectly all the time.

Mostly in real life, people just want to have the conversation flow. If you make something a sticking point, it gets awkward. Even if it's something you really really disagree with, like on a moral basis, just say you disagree and why. If people get defensive, just say something like "you do you" and drop it.

There's this strange thing that happens, where simply the existence of an unresolved competing opinion, that isn't antagonistic, does some magic psychology stuff I don't fully understand. Over time your friends' opinions will often shift to be a compromise. My theory is, it's because they still want to be your friend, even with your different opinion, so their mind resolves the conflict in any way it can, which often means their position becomes more moderate. It's not manipulation, you're just holding your position and others shift around it.

You don't have to "win" the debate. Just have your opinion survive the conversation relatively unchanged.