How to spread Islam?

Re: How to spread Islam?

I was watching a video recently what I like about the video was most of the non-muslims argue upon hte secondary factors of Islam such as polygamy, hijab, and other non-related factors.
Prophet Mohammed may peace and blessing of Allaah be upon for the 13 years of Prophethood in Makkah he only fought against the Mushriks to believe in Allaah, One God.
Importantly as a Muslim we should realise our important basic tenant of faith that is unique, distinct from other religions and thats Tauheed, Islamic Monotheism,** One Creator, One God, One helper, One protector, One worshipper*.
A straight path between Creator and Man.
This is the best form of theology no complexities. This is the primary factor of Islam the first basic tenet of faith, to even enter Paradise.
I basically regard this as primary factor because when a non-muslim questions about secondary factor to get him to the territory of Islam rather than answering questions which are refutable.
As in Surah 10:99
If Allaah wanted all would have believers.
So the Prophet Mohammed peace and blessing of Allaah be upon him was just a warner, messenger, who was send as a blessing to mankind to deliver the Message of Allaah.
But he himself had no power, till Allaah wanted to guide.
I prefer our job is to pass on the message, rest is by the will of Allaah.
Read the last verse of this Surah.
**Surah al-’Asr *

Bismillahir-Rahmanir-Raheem
1. By time ,
2. Indeed, mankind is in loss,
3. Except for those who have believed and done righteous deeds and advised each other to truth and advised each other to patience.