What ones harder boxing wrestling or karate?

iam kinda in the middle i do mma. but what ones harder. with karate you can kick punch push and knee. in wrestling u cant punch only grappling. and boxing u have to punch. in karate you use mma gloves and a puch to the face hurts well more than a punch with a boxing glove. and in wrestling its hard to get out of the lock and tangles u get in. and when i had a boxing match it was hard becuse i couldent kick. so i could only use left and right hands. and in karate the kicks hurt like hell. and bixing hurt like hell becuse you fist. and u could win so much quicker by kicking. and wrestling hurts like hell when thier is a fat guy ontop of u giving a submission move. so what ones harder.