This is already a flawed outlook. Doesn't matter what the numbers are, the minority shouldn't be denied what powers they should choose when the majority can make a 1-time trip to turn it off forever vs someone can't use a power they chose that exists in the game.
That's why the devs incorporated Null to begin with instead of scrapping GF altogether. Minor consequences for the majority will always take a backseat (going to null) VS severe consequences for the minority (scrapping GF)
You are obviously more than welcome to form teams and exclude GF users for sure, but in turn they aren't required to like your decision either.
That's like saying if weather causes me to wreck my car and I didn't have full coverage insurance, I'm being tied down.... No, you know that bad weather is a thing, we can't get rid of bad weather, and its on you if you weren't properly insured. Similarly, you know GF exists, and you know Null exists....if you didn't make the 1-time trip to cover yourself that's on you.