Will icsi eradicate genetic disorders?

NO. Icsi is a technique to insert the sperm into the egg. Icsi solves the problem of sperm that cannot penetrate the cumulus cells, zona pellucida (shell around the egg), and the egg membrane itself. Icsi is not a genetic treatment of any sort. Genetic ivf treatment is called preimplantation genetic diagnosis (pgd) or screening (pgs). I hope this brief answer helps.