Trump wasn't "arrested" in the way Navalny was - i.e. poisoned and tossed in a cell to die. Trump is getting trials, and frankly getting a lot more leeway during those trials than the average citizen would. To date every court is erring on the side of leniency when dealing with his behavior. Punishments are only given after he is found guilty of things he actually did, and they are within the previously established guidelines.
The nation is not going to apologize to the MAGA crowd for demanding their cult leader not commit crimes like fraud, sexual assault, and trying to dodge US democracy with an insurrection.