We take our example from Lord Jesus, who takes example from God. During His travels the Lord met with, and studied, many different religions and philosophies. Almost every encounter He had with leaders of the various groups ended in some form of a struggle--often times they tried to kill Him for that.
What Yesu did, we read in Scripture, was to scold the elders and priests (especially the priests) for dwindling from the pure precepts of their holy scriptures--for apostasy.
The Lord teaches us that there is but One Truth for all humankind--like one sea of Truth serving the universes. All the rivers contain of the same water found in the sea, of varying degrees of purity, and all rivers ultimately run to the sea. True--some streams are creeks that run to an underground destination and some run to dry sand beds in a desert--but ultimately the water will go through the cycle and pass into the One sea.
We must learn, and it is not always easy, to be as tolerant of religions and philosophies as God is.