This is completely inaccurate. What Haplogroup R-CTS241 (also known as R1b1a2a1a2c1), means you HAD a direct male ancestor that was "white". It does not mean someone is "white". The male ancestor with "white" features could have been hundreds of years ago because this haplogroup has spread very far.
It originated in a male less the 10,000 ( yes 10K) years ago. It is a relatively common haplogroup. Believed to have started with the Celts in Ireland and spread to Scotland, Briton, Wale and farther after 10k years ). It "is also present at lower frequencies throughout Eastern Europe, Western Asia, as well as parts of North Africa and Central Asia. The clade is also present at lower frequencies throughout Eastern Europe, Western Asia, as well as parts of North Africa and Central Asia."
The Line goes about as follows.
Haplogroup A - 275,000 years ago in Africa
Haplogroup F-M89 - 75,000 years ago in the area of the Red Sea, Saudi Arabia, Southwest Asia
Haplogroup K-M9 - 53,000 years ago. They migrated through the Middle East, but spread to Central Asia, Central Europe, and East Asia. This is a very important haplogroup to the world. over half of the patrilineal lines of the world came from this haplogroup.
Haplogroup R-M207 - 30-35,000 years ago, was from Central Asia.
Haplogroup R-M343 - Spread across all directions from West Asia. Even backtracked in your ancestors' migrations.
- Comes from the above haplogroup like all the others. However, this one arrived 10,000 years ago. Do some research on this group. It is interesting as this is a group that took many strides, and it caused genetic domination in many areas.
R-CTS241- Shortly after R-M269, your haplogroup shot out from them. This could have occurred shortly before they migrated to or shortly after they arrived in Ireland.
The reason I state one can have this haplogroup and not be "white" is simply that there has been a great deal of mixing since the haplogroup's arrival. For example, I have a cousin with this haplogroup. They are only 3% Irish and 19% English. The other 78% of their DNA was a mixture of Nigerian, Congolese, East India/Pakistani, Armenia, Russian, Lebanese, Arabian, Spanish, Portuguese, Southern Italian. I do a great deal of genetic research for my family, and it is a lazy and irresponsible response to assume anyone's race and ethnicity by their haplogroup.