Because of the nature of how these children were brought here when they were young (illegally, not through an official port of entry), there isn't really a clear path to citizenship available for them. Their parents are not typically here legally, either, so they can't exactly follow the steps in the current system (any many of them have likely faced deportation while their children remained). Your own personal situation isn't really analogous to this group of people as you were already a legal citizen when you started the adoption process (good on you for doing so).
The DREAM Act was introduced in 2001 to present a solution to this growing problem and build a pathway to citizenship for these kids, but it has consistently failed to pass in Congress despite being introduced multiple times. The requirements to qualify for protection under DACA are fairly narrow and the way it was implemented by executive order is absolutely not a good solution at all, but Congress has repeatedly failed to find a lawful solution (despite support on both sides of the aisle) so here we are.
I don't disagree with Trump's assessment that the solution needs to come from Congress, and Obama urged the same thing, but holding hostage this specific group of ~800,000 people who are making good contributions to a country that for a lot of them is the only one they've ever known is not an acceptable strategy to get Congress to act, imo.
Correct, I maintain that certain views/ideologies/opinions should not be given equal respect. Who am I? Just a person living in the United States. Myself not willing to give equal respect to people who want to ban/deport all immigrants or illegal aliens regardless of circumstance is certainly not the reason Trump won. How you made the leap from my statement to "you're the reason Trump won" is ridiculous.