At start, Satoshi choose 32MB as consensus rule, then changed it to 1 MB consensus rule, now it can be changed to 2 MB if majority chooses. If you dont want, your free to use 1 MB the same way people were free to choose continue using 32 MB before, none force you anywhere, but you force me to keep using 1 MB. Do you see the difference between dictatorship verus freedoom here ?
No. Stop with the "majority" nonsense when talking about 75%. For an upgrade of the network we need 'almost everyone' (obviously you can't achieve 100% but can come close to it) on board else you break consensus. You are essentially forcing the 1/4 of the current network (and this is a lot of people, hashpower and possibly even more merchants) to join the fork or be left on a slow and dying chain. This is not freedom.
While a hardfork block size increase would be "simpler" in terms of lines-of-code, it is hugely more complicated socially because Bitcoin was specifically designed to make such changes impossible without agreement from every single user (not merely miners).
Well, no. Only for non-fully-validating nodes. All nodes that ignore the signature chain will need to trust other -- fully-validating nodes (which get no capacity boost) -- to do the validation for them.
It does for those who upgrade; those that don't upgrade never needed the increase in capacity.