It did. The War on Terror was so bad for the political actors who took part in it in the US (and by ripple effect in Europe), that they were trounced by Obama, who is still the highest approved US President in the 21st century.
Trump won, partly by saying the War on Terror was a disaster and the Republicans were disasters. He distanced himself from a right wing which had done the same thing, made itself irrelevant to the mainstream with performative patriotism while we actually lost lives and trillions of dollars in a quagmire people didn't want about 1-2 years into it.
Whoever brings the left back will have to distance themselves from the party in a similar way
Trump won, partly by saying the War on Terror was a disaster and the Republicans were disasters. He distanced himself from a right wing which had done the same thing, made itself irrelevant to the mainstream with performative patriotism while we actually lost lives and trillions of dollars in a quagmire people didn't want about 1-2 years into it.
Whoever brings the left back will have to distance themselves from the party in a similar way