This is the thing we found out way back in the 1500s and 1600s. The various teams don't play nice with each other. The only reason they are accepting of one another at the moment is common enemy. The second that State religion is permitted, South Baptist and Catholics are going to be kicking each other's teeth in.
There's a shit ton of money to be had in the church. No one is going to let some other team take it willingly. They will absolutely eat each other and in the process wreck collateral damage unlike anything anyone has seen since the 17th century. That's not guessing, that's like a for sure outcome. We've got a little under 20 centuries worth of history that tells us what the outcome is every time.
That's correct, you can not do such. Apple does not litigate its logo with copyright but in trademark disputes. Prepear and Georette are examples of this.
You too can create a logo of an apple with a piece bitten off. It's up to a court to decide if it's coming too close to the Apple trademark, most people want to just avoid that and settle amicably, but if you've got to the pocket change to fight it in court, you can argue that your bitten off apple isn't a trademark infringement.
If you find a company that isn't keen to defend their logo, you can totally get away with it. Apple is on the other end of the spectrum of being someone who will protect their trademarks to the bitter end. Jack Daniels and Disney are two more examples of companies that will legally punch a five dollar start up into a bloody mass over trademarks.