why do we need cars that go over 55? why do we need portions of food bigger than 500 calories? why do we need yards bigger than a 1/2 acre? why do we need more money? More people drown a year than they do from AR15 fire, do we ban swimming? Do we ban sports on account of injury? Most wars are fought over religious beliefs, ban religion? ban sky diving? ban drinking? The 2nd amendment is so important because it's the foundation of all amendments.
If people started stealing corvettes and driving through classrooms to murder 30 people at a time, or started kidnapping people and wholesale drowning them in backyard pools, then yeah, im sure people would try to ban or restrict that stuff.

Sports is voluntary, if you dont want to get injured playing basketball you dont play basketball. if you dont want to get fat, dont eat 500 calories worth of candy.

One cannot simply choose to NOT get shot its out of your control, which is why its a crime.

Now youre equating choices of lifestyle with crime. Doesnt make sense