There seems to be a lot of confusion about a lot of things here.
First, "the day of the i5 is done". The i5 7500 meets the recommended requirements of every game he mentioned (Overwatch, PUBG, LoL). The only game that there will be trouble is PUBG because it is optimized very poorly. I run a 7700k and 1080ti in sli and still get frame drops. The good news is the game is very popular and the developers will get it figured out. Steam hardware survey for July shows 43% use dual core CPU, 50% use quad core CPU, and less than 2% use more than 4 cores. Game developers don't develop games that most people don't have hardware to run. This is why VR has not done very well. The 7500 will be a good chip for a good while (in CPU time)...