Well and truly understood.
If that switch gets hot enough it will trip the headlight breaker. Just because of thermal ampere de-rating.
I have no idea if premium aftermarket brands are even as good as OEM
But after doing far too many relay conversions, if the tail lights come on even for ten seconds, a faulty switch will easily power a tail light TYCO relay for decades with only normal switch heating (very little).
I've driven 40 year old MoPars and Chevrolets with original switches yet I have fixed (how many?) nearly new Ford E and A products. Six months old and this? Jartran got upset at me for driving 500 miles and doing on-the-spot night time repairs on stranded customer's rigs. Stupid Stupid Stupid...