Haredim don't match their kids up with converts. There's no historic / accepted basis in halakah to annul anyone's conversion. If municipal rabbis won't register people for marriage, just fire them: They're employees of the state. It's not necessary to go to such extremes as this bill proposes.
UN: Gaza could be 'uninhabitable' by 2020 if trends continue (AP)
from the article: The conversion bill demystified