Yes, it certainly is, just ask a lot of Palestinians what they think about Israel. And I would say that suicide bombing is about as definitive statement of that hatred as can be made.

EDIT: sorry I forgot the second part:

If anti-anything does exist, how can you discern the difference between not liking certain aspects of that country and not liking an entire country?
Well, in the latter case you generally get something specific like: " I don't like England, the beer is warm and it is always raining" or maybe you don't like the policies of the current government (China maybe?).