In my honest amateur opinion karate seems more about both strikes and kicks, while the other one is basically almost all kicks.
Either would be fine I suppose. Also depends what you want to get out of it. Both sports will make a kid tired, both will have some sort of discipline build in.
Why decide now? Try both, see what the kid likes better. At a young age it is mostly about who their friends are and what they are doing anyway.
His people are dieing everyday, but Zelensky has to look at hats. What has the world come too? Why is a todler elected to such a powerful position?