Remember that as recently as 2012, people were saying the EC favored Democrats. This could easily be the case in 10 years when states like AZ and GA become D - leaning, and Texas is a tossup.
Yes, the EC has recently favored Democrats and that will in all likelihood be even more so the case (in a lopsided manner) going forward imo.
What do you envision here? Are you thinking of something like this becoming normal?
Why does everything think Illinois will become a solid GOP state in the future when assuming future coalitions hold?
Which they may not.
I have seen people say that the GOP must win Illinois to adapt to losing to losing Texas. Uh, by that time the state will have 16 electoral votes compared to Texas having over 40. And Illinois 16 electoral votes would be dominated by a very Democratic metro area. People often forget that downstate Illinois is losing population quicker than Chicagoland and there are parts of downstate that are demographically trending D.