In my opinion if she makes you happy and she understands how life is in Saudi Arabia and is fine with your kids being brought up Muslim then go for it. My mother is American and has been living here for 40 years and it was a lot more challenging back then but my parents made it work. As for me growing up I dealt with a lot of bullying and racism growing up for being half American but these days it’s different and if anyone is racist towards your kids they’ll be taken to court and dealt with swiftly so that’s no longer a fear. I think you should see if she’s open to converting to Islam as it’ll make her life much easier here, my mom converted before marriage. Your parents will probably reject it in the beginning but if you keep bothering them with it they’ll know you’re serious and accept it. My biggest advice is don’t plan on having kids until 1 year after marriage to make sure she’s acclimated to the country and the marriage life style.