Is establishing an organization in a land of disbelief for the purpose of calling to the correct religion, instead of the people of innovation, a cause of division among Muslims?

Question:
This questioner is from the Netherlands. He says: We are a group of young men. We established an organization in the Netherlands that is legally permitted. It calls to the methodology of the righteous predecessors (Salaf), and prayers are held there. People have flocked to it, praise be to Allah. He says: There is a mosque not far from the organization, but its imam has innovations and leans toward the Ash'ari school. We are unable to carry out the correct da'wah within that mosque. He says: Some of our Salafi brothers told us that establishing this organization causes division among Muslims and that it is obligatory for you to close it. Should we heed them, close it, and return to that mosque whose imam has innovations? And what should we do?

Answer:
The one who says this is either ignorant or misguided. Continue with what you are doing. Pray, build a mosque for yourselves and pray in it, gather together, learn, and teach. Yes.