"destroying the relationship" between advertisers and consumers"
This is like saying "destroying the relationship between rapists and their victims".
There's freedom of speech, but we should also have a right to 'freedom from speech' - it shouldn't be allowed to yell "fire! fire!" in a crowded movie theater just as someone advertising their business by shouting through a bullhorn outside someone's house at 3AM should also not be allowed. If someone wants to speak, there's a reasonable level of unobtrusiveness that they should not be able to exceed but many ads on the web do just that. Inventions have come and gone (VCR's, TiVO, anyone?) that could have just as conceivably "[destroyed] the relationship between advertises and consumers" (and were subjected to exactly these arguments when they started to become popular) and yet both advertisers, consumers and the relationship between them (for better or worse) is very much alive and kicking.