It's simple really.
Achievements of Labour under Blair:
Achievements of Labour under Corbyn:
1. N/A.
That's the problem. And unless he can populate that list then how great he is is irrelevant.
1/ Corbyn has never been PM so your comparison is not valid
2/ If the third way of caring neo-liberalism (an oxymoron if ever there was one) was so successful why the fuck did Blair lose so many Labour voters over his years in office
3/ Blair is directly responsible through his idiotic support for the Iraq war for the rise of Muslim extremism.
4/ The third way he advocated is directly responsible for the huge rise in inequality.
5/ Blair did some good things, but missing from the list is
a) reversal of Thatcherite union reform
b) lack of renationalisation of vital national assets
c) no democratisation of party processes
d) ludicrous use of PFI
e) refusal to regulate financial markets
e) virtually no council houses built
f) introduction of WCA
g) introduction of fees for university
h) started privatisation of the NHS
I) Pandering to the USA at expense of China
j) No reinstatement of clause 4
k) Millenium dome fiasco
l) No foresight at all on effects of immigration from Eastern Europe
m) No constitutional reform of note
n) Failed to abolish grammar schools
o) Failure to implement Jenkins commission
p) Continued support for nuclear weapons
q) Corporate welfarism of tax credits
r) His biggest sin was to move the Labour party to the centre ground which allowed the Tories to move the Overton window rightwards, negating the calming effects of one nation tories.
s) Failed to join the Euro allowing for rise in UK exceptionalism leading to Brexit
t) being a twat
Blair wasn't a bad man, he was possibly a decent man who wasted his chance to become the greatest Labour PM of them all by ditching Socialism and falling for the neo-liberal con trick. The question he never addressed was that by taking on corporate and wealthy vested interests he could have redistributed assets from those who live off wealth to those who live off work and his failure to do so has led to the rise of the far right extremism and the marginalisation of the working class. If the Labour party is to be anything it needs to be the party of labour not of the owners of production.