Given the sheer number of both Israeli and foreign NGOs and activists that do it on a daily basis and that quite a large number of non-Jewish Israeli residents and citizen have families in the territories - nothing.

Heck before the situation in Syria had escalated out to an all out war it wasn’t unheard of for Israeli Druze to wed Syrian nationals.

https://www.google.co.uk/amp/s/www.haaretz.com/amp/1.5104073

There is much more nuance to the situation in the Middle East than you think.