Inappropriate group text message and sexual harassment

Unfortunately when scammers - fraud - and sexual predators send out group text messages to 20 different phone numbers with a "link" and inappropriate language or sexting from an email address and they are in your contacts you cant report it - none of the email addresses they use are in my contacts nor is any of the phone numbers in the group they send this garbage out to - what then? I am sick and tired of receiving these message almost daily now - having to one by one block on my phone yet they continue to come through? Plus I report to appropriate Gmail or Outlook - but others come through with unknown carrier - or internet service provider name or known name. Over the last year it has went from once every now and then to now multiple times a week or even last weekend it was twice in one day.

Replying Stop - Remove - or I am reporting you only lets them know it is an active number and the crap continues. I see others in the group message (even after I have blocked all numbers in the 20 listed they sent it to) reply back to stop or remove - or I am reporting you or other cuss words.

Make this irritating and inappropriate harassment stop