To the first example, it's the same as whining about restaurants being forced to serve black patrons. If you are business open to the public you should serve the public. The slippery slope is beyond obvious. Can a doctor refuse to treat gay patients? A lawyer refuse to represent gay clients? A professor refuse to teach gay students? Regardless, conservatives won this one. Business owners can discriminate based on sexuality. Hurray? Yet why is this activist bringing up a case they already won?
The next examples of "how-to" manuals in elementary schools simply isn't something that exists. Further, it's frankly cover for the real agenda, pulling out any book making even the most glancing reference to homosexuality (billy has 2 dads) or past racism (MLK existed). It's a lot of hot air and fire over books not shelved in elementary schools. Perhaps in highschool or junior high, which is age groups where more explicit texts are acceptable.
> and have led to a decline in public support for the gay rights movement.
Completely the author, a conservative that likely does not support gay rights, opinion.
> the controversies keep activists in business.
I actually agree with the author here. Yes, the controversies keep the activists in business, but WHO are the activists? The answer isn't who the author identifies.
Consider how many rightwing outlets repeated the lie "Now schools are letting kids identify as cats and poop in litter-boxes!". Which activist do you suppose started that?