You're quoting from Hebrews 11:1, but in Verse 3 the text says, "Through faith, we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear." That is what the "evidence of things not seen" is talking about. We cannot see God, but we see clearly that the things which God has made and done are from Him. The greater context of Hebrews 11 discusses how the saints of old received God's promises from afar, not having seen the total fulfillment of them. That is the essence of what the passage you quoted is talking about. Faith has nothing to do with being blind to the things of this world, and I challenge you to find me one passage in the Bible where it teaches that. Your definition of faith is sorely lacking, and it's unbiblical.
In 1 John 1:1-3, the apostle John states,
Those things which John observed with his senses was of God and from God. John's faith was based on concrete evidences that God is Who He said He was, and John was an eyewitness to those things and wrote them for our edification. He did not appeal to some ethereal "blind faith" as the basis for his belief in God. Yet, that is what you are stating faith is about with no Biblical warrant for such a notion.
Philosophical and material evidences of God are not opposed to God, and they are the kinds of evidences which become more real to the person that meditates on God's word day and night (Psalm 1). You need to stop adopting the world's definition of faith (that it is based on blind things) and be grounded by what God's word has declared about it. Faith is not believing what you want to be so, nor is it picking up from where reason leaves off.
So the only question that remains is have you read (and studied) the Book?