When you say “Solution” your endgoal would have to be that the ad creep ends and this isn’t done through personal consumption fir various reasons.

I start by telling you i am already participating in ethical consumption for decades you know what changed? Nothing.

1. The adcreep isn’t the main problem our economy rewards cut throught capitalism.There are already enough reasons to stop buying shit but people keep doing it.
2. Second Hand, i already by almost exclusivly second hand and so many others do that so second hand prices where raised so much that it often isn’t cheaper anymore. If second hand became so popular that the industry needs to react they will just addcreep for “second hand”
3. Repairing things is easier said than done, things aren’t made to last long, repairing them is very timeconsuming if you have no idea how it is done. Spending money and freetime on something that you can just buy new for cheap is unrealistic on a bigger scale.
4. buying from smaller brands from where? Any supermarket belongs to a megacorp. Just research what brands belongs to which supercorp. You almost can’t escape it. And even if you buy from small unifiliated brands once they get too popular big corp is just scooping them up.

I could go on and on but the main problem is that you would need a critical amount of people doing the same as you and they will not people will take the easiest way and you can be mad about it but you shouldn’t blame them. The crux of the issue is how the economy works. We need regulation that forces companies to act responsible anything else is doomed to fail. I am not saying don’t consume ethical where you can but if you want to really have an impact you need to focus on politics.