I'll fight you! In a game of Pathfinder of course.

I agree, but D&D's simpler mechanics means newer players won't get overwhelmed and will let them learn how to do the other, less crunchy parts of RPGs that they would have little to no experience in. Its popularity also means there are more sources to look for help. (If anyone yells at me to look at a simpler TTRPG, Utopia is amazing and is simple enough (excepting the crafting). I would just like newer players to have more resources they can research).