
The 19-year-old missed England’s final spotkick after teammates Marcus Rashford, 23, and Jadon Sancho, 21, also failed to convert in the shootout, with all three subsequently subjected to racist abuse online.
The comments prompted a police investigation and brought widespread condemnation.
Arteta told Sky Sports he had spoken to Saka and was sure that he would be fine.
“He is such a strong character,” Arteta added. “He has received a lot of love and support from world football, not only with Arsenal but the national team and the English fans because he doesn’t deserve anything like (what) he has been through.”
British Prime Minister Boris Johnson held a meeting with social media companies on Tuesday to ask them to do more in the fight against online abuse.
“… Hopefully the laws will become stronger. I think we’re all going to try and make a strong case out of that,” Arteta said. “Hopefully, it can have a big impact because it’s the moment to put that right.”