+1 and fully agree.
Some people are just ashamed of who they are and suffer from inferiority complex. No matter how much Italian they will want to see in the mirror, the world will still see them as what they actually are.
99.9% of Italians look nothing like Pakistani people.
Cringe!
There was a lot of prejudice and unscientific notions about ancestry, but modern science has provided us many answers.
I agree that we should be proud of who we are instead of trying to find tenuous links to other ethnicities.
Having said that, we can still satisfy our curiosity by informing ourselves of what science has to say about ancestry.
1) mtDNA is relatively static, that is most people of the subcontinent have the same matrilineal ancestry (haplogroup M). Invasions and migrations were carried out mainly by men, who mated with local women.
https://en.wikipedia.org/wiki/MtDNA_haplogroups_in_populations_of_South_Asia
So the difference in genetics of communities is mainly indicated by patrilineal ancestries.
2) The Y-chromosome haplogroup percentages table of South Asian communities below show widespread mixing.
https://en.m.wikipedia.org/wiki/Y-DNA_haplogroups_in_populations_of_South_Asia
The two most common patrilineal ancestries are: H (Dravidian) and R1a (Indo-European).
3) Two major Y haplogroups that are observed most in South Asia and very little outside are H and R2. These are definitely of South Asian origin. Whether R1 is of South Asian origin or not is controversial.
4) Pathans, who people keep thinking as some sort of pristine Indo-Europeans, actually show about average Indo-European ancestry (R1a), and less than many other communities. They have about 4% to 14% Dravidian ancestry (H) depending upon the study.
5) The communities that shows the greatest Indo-European ancestry (R1a) are Bengali Brahmins (72%), Terai Hindus (69%), UP Brahmins (68%), Bihar Brahmins (61%) and Tamil Nadu Bohras (54%). In comparison Pathans have 38% or 45%.
6) Worldwide Bengali Brahmins show the greatest R1a ancestry, which reaches levels of around 50% in Ukraine, and 25% in Germany and Nordic countries. This clearly shows that South Asian Indo-European ancestry is not due to some invasions by Greeks led by Alexander, but from much older times.
6) Indian middle castes and tribals have considerable R1a.
7) Haplogroups like L are present in the largest concentrations in South Asia and less abroad, suggesting a migration out from South Asia rather than into South Asia.
There isn't much point in discussing this with the people you are engaging with, they either don't understand this data or are simply reluctant.