I don't think you'd have any problems with the people of Glasgow in this respect. Anti English rhetoric is an unfortunate political tool of the SNP party, but I don't think it's something that the people of Glasgow can be accused of, other than the usual banter that has always existed.
What I would say though is that in recent years Glasgow city centre has certainly suffered under the SNP council administration in Glasgow. I still enjoy visiting the city but the city centre is more run down than it was and streets that used to be thriving (Sauchiehall Street, Union Street, Argyle Street for example) are struggling and there are definitely more drug-addled types wandering and living on the streets than there used to be. Again though, I see this in most major cities unfortunately, Glasgow is far from unique in this respect.