Actually I think the opposite is true. I think that equating some animals and their behaviour with humans is basically what a lot of people do who think hunting them is therefore so bad. I certainly don't do it at all.
As for social bonding...... lot's of animals do that and it's never been a reason not to hunt them. Some dolphins ideas of social bonding include the practice of infanticide - not exactly something I'd equate with human behaviour.
A study of human history from a cross cultural perspective will (sadly) show a long history of infanticide - in many cases for exactly the same reason it is believed to be practiced by some dolphin species.
One could very much argue the "humaness" of that behavior.
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In general we as humans strive very hard to justify our existance as the dominant species with, to paraphrase some religious beliefs, "dominion over all other living creatures". We once defined being human as the ability to both use and make tools. This was commonly accepted until chimpanzees were observed stripping the stems off a long twig to create a tool long and thin enough to poke into a termite mount to extract termites. We, in our very human arrogance, moved the finish line farther back to exclude them.
This example highlights our predjudice that links intelligence (and the "human" rights that should accompany that intelligence) to the possession of fingers and opposable thumbs. It also highlights our committment to changing the definition of human intelligence in whatever manner is needed to exclude everything else that walks, crawls, flys or swims on the planet.
Language has also often been used as a defining trait and we attempt to exclude neanderthals from our direct human lineage, despite their larger brain, on the basis of evidence that suggests they may not have had quite as large a vocal range as modern man.
Howver if you rate modern man by language complexity, he scores on average about an 8 on a 1 to 10 scale with dolphins also scoring an 8 and humpback whales scoring a solid 10. Darn...looks like we are going to have to change that definition of intelligence as well.
One thing to rememebr is that modern man has only been around for about 40,000 years (100,000 to 150,000 years at the outside if you get generous and include neanderthal). That is a drop in the evolutionary bucket compared to most whale and dolphin species.
When you condsider both their longevity as a species as well as their lack of opposable thumbs, you have to consider that it is entirely reasonable for them to have acheived our level of intelligence given their brain size and language ability and that the odds are exceptionally good, if we leave them alone, they will out last both our species and our opposbale thumb driven tool using culture - which in the end will most likely be the cause of our own demise.
I personally have the sincere hope that they are still around some day to have the last laugh at the arrogance, pride, greed and stupidity that our eventually to be extinct species calls "human".