You can still give your kids English names as their legal even if they go by their lashon hakodesh/”real” names on a daily basis.
There are still good reasons to do so, such as the unfortunate reality that we have not yet been redeemed and are, therefore, in galus. Even if it is a more “tolerant” and “multi-cultural” one, including for those of us blessed by Hashem to live in the medina shel chesed.