Python - Selenium Pythin: How to make a bot that asks a user why they followed you when followed you (by private message)

im trying to make it here:
my follower page is in the comments
someone told me to use my code, then do this:

the code:

list_of_followers = [# get this list(I assume you know how to...)]

new_followers = [# create another list of new followers that]

for user in new_followers:
    if user not in list_of_followers:
        send_message() # function that sends messages.

, but i want to do it with selenium and that person didn’t have the time. can you help me?