This all Comes from data brokers who are getting your info from Sites that you have done business with before. They sell your info to the data brokers. Then the Data Brokers sell that to any one who wants to compile a list to send out spam and Bots and fraud and other reasons. There are over 600 and some Data Brokers who buy your info.
There is a Service that I use called Incogni. They go to the Data Brokers and request your name be removed. It is the law and they must compli. You can do it yourself but you would need a staff and a 40 hour work week to even scrape the bottom of the barrel to get to them all. They do it all for you as they monitor your name and when it pops up they go after the DB. Do a search and read up on this company.
I use them and my spam has robo calls have been cut way down. You also get a report of how many were removed and how many are in progres of removal.
Mark R

