Among interesting surprises are some information which can be doubled checked.
The YouTube channel for your posted URL -- https://www.youtube.com/@historylegends -- "...monetized! Since Feb 12, 2019, the channel has generated 88,273,630 views. Assuming all views were monetized from day 1* with an average RPM of $3.00, this channel has generated $264,820.89 over 1626 days. That's an average of $59,446.26 per year."
But among the "mother" cited URLs, one -- "Oracle Eyes" -- "...is monetized! Since Mar 29, 2014, the channel has generated 194,890,031 views. Assuming all views were monetized from day 1* with an average RPM of $3.00, this channel has generated $584,670.09 over 3407 days. That's an average of $62,637.10 per year.
And the especially "mother" promoted channel -- 'Denys Davydov' -- "...is monetized! Since Apr 20, 2014, the channel has generated 335,884,158 views. Assuming all views were monetized from day 1* with an average RPM of $3.00, this channel has generated $1,007,652.47 over 3384 days. That's an average of $108,685.92 per year."
So it seems the highest earning of these three is the daily posted "Denys Davydov" --
Except another "mom"-recommended "channel "UATV English" is monetized! Since Feb 8, 2017, the channel has generated 253,533,291 views. Assuming all views were monetized from day 1* with an average RPM of $3.00, this channel has generated $760,599.87an average of $117,635.15 per year. So the clear winner becomes UATV English, begun in 2017, long before the war.
One may wonder what any of this has to do with actually fighting for or against Ukraine.... It doesn't.
But the open therapy aspect of cheering for or against -- seems to function quite nicely. And affects the outcome of the conflict NOT AT ALL.
Of course, YouTube profits from those both for or against something or the other.
Which side in this conflict will win? Which will lose? Time will tell. Videos on YouTube competing and disagreeing one with another tells little. But it sure whips up the fans.
Source for those interested: https://isthischannelmonetized.com/
It is international PR for the Ukrainian cause. That is very valuable to Ukraine. And it does have an effect on the war.
Davydov and his counterparts are doing good work.