Doesn't it achieve opposite effect? All smaller, non ASIC resistant currencies can be bullied by someone with a lot of (rented) PCs. Ignore 51% attack, just sudden changes in difficulty & time between blocks would introduce chaos.
ASICs are specialized equipment which usually costs a lot. That leads to centralization, which is not something you want for a cryptocoin. Just look at bitcoin with their four people controlling a majority of hashpower.