The hypothetical doesn’t ban marrying Russian speakers or citizens. It doesn’t ban naturalisation based on marriage for a Russian speaker. It bans naturalisation based on marriage for Russian citizens. While at war that seems fine.
The Israeli right still largely views the context in this lens, as does the Muslim Brotherhood, which backs both a significant amount of terror groups in and around Israel, and Israeli Arab political parties https://en.m.wikipedia.org/wiki/Muslim_Brotherhood
https://en.wikipedia.org/wiki/Israel%E2%80%93Jordan_peace_tr...
"The signing ceremony took place at the southern border crossing of Arabah on 26 October 1994. Jordan was the second Arab country, after Egypt, to sign a peace accord with Israel"