I actively encourage you to participate in BDS of the states you have an issue with, as I do myself.
I think you should read more in the history of this relationship and compel your representatives to stop this policy of arming dictatorships just so your uncle in the mid-west can keep his job of machining parts for tanks and missiles.
There is chaos in the M.E and it is fueled by your weak politicians putting jobs (among other things) over peace.
If they came through legally, they'll be just fine. Maybe not before a few years ago (valid criticism). If they snuck in then that may be a different story - then you can go into how the Kingdom treats and abuses illegal migrants and expatriates (more room for valid criticisms)
Drew Binsky is of Jewish background and he is welcomed, which is counter to your insinuation that.... he would be beheaded on the spot (???)
Even pre-reform not much would've happened to him on the ground by the people.
It is true however, that generally Jewish people were not allowed into the country. Of course there were exceptions back then also.
I think your sentiment is on the right side, you just need to make sure you keep up to date with what's happening so as to not invalidate your own position/talking point
SA is a country ruled by an evil group of people who have so good political connection that the US invaded Afghanistan instead as a revenge for 9/11.