English doesn't really do the 'y' sound for j's except in clearly borrowed words. For 'native' words, it's generally 'dz', and only becomes 'h' or 'y' when adopting foreign words like jalapeno or fjord.

If you really want to standardise English spelling, then 'kompyuter', 'halapenyo', an 'fyored' would be the targets. The only problem is that when you start doing phonetic spelling (against a standard accent), you start to lose the semantic link between words - it's no longer clear which words share roots.