When each of us bought a house here we agreed to be bound by the CC&Rs. If you did not read them, did not understand them or forgot what was in them, that is on you, not SCA. Whether or not there should be active enforcement is another issue, but to denigrate those responsible for their enforcement is not acceptable. I do not care about sports flags, but they are currently not permitted according to the regs you accepted, like it or not.
The CC&Rs were put in place by Del Webb for what ever, and they may all not be appropriate for us now. The worst thing a HOA can do is to not enforce or selectively enforce the CC&Rs. This can lead to all sorts of legal liability for the HOA. It is one of the reasons for active enforcement.
The way to approach this is to have the standards changed. There are several ways to accomplish this but a temper tantrum is not one of them. The same goes for the two 5 foot tree rule. You agreed to maintain your property, even if it costs you some money, according to the standards. Realize that trees only have to be tall and there are many varieties of them, like palms, that don’t take up much space for those of you in narrow houses with small yards.