Peter/MJ is like Supes/Lois. It's such a natural pairing that you don't even need to argue it. The most unpopular Spidey story to this day was dedicated to arguing against it.

Peter/Felicia is a ship that is perpetually something you need to debate, which makes it inherently less natural. All she is is a virtue test that reaffirms how much Peter is devoted to MJ. Believing otherwise is just cope.

Goofy ahh unc containment thread on god