NO. See post 74
If being convicted of a felony actually meant something, then there might be a reason for DNA samples to be taken, but to make it a blanket procedure done on anyone who's convicted of a felony? No.
How do you feel that having a database of genetic markers of criminals is fundamentally different then taking their fingerprint?
Are you against the taking of the fingerprints of convicted felons?
It is easier to not leave behind fingerprints than it is to not leave behind DNA, especially in rapes and murders; which are the crimes where the DNA swipe kit comes out for the most often.