Then write your congressman.

Ladies and gentlemen - in one corner we have a handful of citizens concerned enough about an issue to occasionally write an email to their congressperson, which if they're extraordinarily lucky will be digested by an intern and show up as a line in a memo the congressperson glances at the next morning. Truly intimidating! Now, in the other corner - a team of trained professionals paid full-time to get the congressperson to ignore that line in their memo, tirelessly working toward this goal every day because that is literally what they are paid large sums of money to do. Now - fight!

Can I make my gun fully auto? Can I create store unlimited explosives without safety precautions? Both of these are modifying things I own.

When you do stupid things that can physically kill people - then NO.

When you do things that violated someone's arbitrary TOS - this should be NON EVENT.

Yes, you should be able to.

I think you should. But I also think it should be illegal to carry it or use it outside your property.