"Oh, you are asking me about an actual problem with my unrealistic plans to colonize Mars? I have no idea, but I must say we plan to colonize Mars soon in order to get money from the stupid investors, lmao"
https://twitter.com/marinakoren/status/1461114697713954820
The amount of radiation, bar storms isn't so bad. Shielded habs should work to keep exposure at safe levels.
It's not perfect, since you'll probably get heightened cancer rates over a lifetime, but it's less of an issue than five other ways mars is gonna try to kill you.