I still think this comparison is a little bit off.
I think all rabbonim say smoking is bad.
Many rabbonim say internet is bad (lets go with this for a moment).
Would you ever say “what is worse, eating pork or eating shellfish?” No they are both wrong. Some people have more of a desire for one than the other.
If your rabbonim have not assured the internet (as mine have not), then the comparison is even worse. Smoking is assur the internet is not.
Either way I think this conversation doesnt make much sense.