I meant it more as a hypothetical rather than your opinion
I'm all in favour of putting people in their historical context, for example few of the articles that criticise Churchill as a eugenicist also point out that this was a commonly held
progressive belief for this time. Ironically, the same educated, urban, middle-class progressives who are howling with indignation about the evils of eugenics today were a key part of the demographic who favoured eugenics back in the early 20th C
The fact that after resigning from his cabinet position after this he actually volunteered to serve on the Western front, and refused both a desk job and a position of high command when he did so, shows he was willing to put his neck on the line for his principles at least.
While there are arguments to be made against him regarding Gallipoli (although there are some mitigations too), he likely believed that what he was doing was for the best. Maybe this was hubristic, but it was this unshakeable confidence that served him well in WW2.
As you note, this is the problem of expecting saintly heroes, often the same characteristic causes positive and negative outcomes throughout their life.