Imam, please permit me to indulge you, respectfully. I think there’s a misconception here:
Being Yoruba first or being Yoruba is not determinant on whether you practice Isẹsẹ or other religions of your choice. From the earliest Yoruba history, we have embraced the culture of religious freedom, because ÌWÀ RERE was crowned as the ultimate virtue and marker of being Yoruba, hence a model Yoruba is an “ọmọ-ti-olu-IWA-bi” (Ọmọluabi). Amazingly, Oluwa, which we reserved in the religious context for our creator, is a word coined overtime from OLU IWA (the paragon of perfection; good character, moral nature, and conduct in the context). Not Olu-ẹsin.
In the Yoruba evolution, identity and discovery system, Character is everything. First before our traditional religion or any religion, certainly. In Yoruba wisdom, anything you possess or claim to be is meaningless without good character. I strongly believe the Abrahamic religions tow this line of belief as well?
That being said, you have defined Islam many times as submitting to the will of Allah (God of Abraham), with that, and with the knowledge that being Yoruba is not foundationally tied to any religious or Isẹsẹ identity, then there is no contradiction in being Yoruba first and it does tower above or diminish your faith and belief system, in my opinion. Because broken to its smallest part, being Yoruba first in this case is like being human first. The creator (Allah, Jehovah, Olodumare; however we choose to call him), who we all (theists) agree is All-knowing, created you for his glory and deliberately created you to be Yoruba so that you can worship him with/in/alongside that identity. One can only argue against this if they think their Lord is not perfect.
Now, here is the misconception as I see it: We are in the era of people using beliefs (religion, music, sports, education) as special-purpose vehicles for realization of political domination and other expansion goals/agenda. In that reality, you are certain to face certain existential threats, which is why people yearn for existential awareness among their smallest unit of association first, to understand that the threat ahead is riding on a phenomenon you care about deeply to achieve other goals which you are ignorant of.
So when people with sinister motives seek to dominate you with religion as the disguise, they want to strip you off your identity first, or make you believe one ranks ahead of the other, in order to isolate you to their side and complete their pre-planned aims and objectives.
Here is my conclusion: If you choose a religion of your choice and submit to it, I don’t think it’s logically possible to rank your chosen religion above or below your identify as human or as Yoruba, especially if your ethnic identity is by design NOT tied to any religion before/after your birth.
So both exist perfectly, as body and soul, bone and flesh, inseparable because both forms the essence of your being and completes your identity as you have derived it.
However, when survival against existential threat comes into play, with the understanding that some would ride on religious identity first to wipe off your kind or dominate you (like some used Bible to enslave back then), would you identify with them or find awareness that such people with sinister motives cannot come first, because their acts in the first place is not of your GOD, the true God. And as such, you cannot embrace them, either ahead of your kinspeople or ahead of any innocent (on the subject) human for that matter??