Yes and in fact, despite what the Daily Mail will say, according to the Office of National Statistics net migration to the UK has risen dramatically in the 3 years the Conservative/Libs have been in power so despite their bluster on immigration, their policies are not working.
It's also...
In all fairness, Thatcher was more unpopular at this point of her tenure than all of Blair, Brown, Call me Dave, Balls and Clegg put together so I wouldn't read to much into it.