Then I guess there's no point in witnessing to others or praying for others' salvation. God will bring those people to Himself in His own time and there's nothing we can do to make that happen or to prevent that from happening. If someone isn't saved and is going to hell, it's God's will and we shouldn't try to interfere.
Nope, Paul gives us an example in v1.
Romans 10 New King James Version (NKJV)
Israel Needs the Gospel
1 Brethren, my heart’s desire and prayer to God for Israel is that they may be saved.
2 For I bear them witness that they have a zeal for God, but not according to knowledge.
3 For they being ignorant of God’s righteousness, and seeking to establish their own righteousness, have not submitted to the righteousness of God.
4 For Christ
is the end of the law for righteousness to everyone who believes.
However, since we are not God, we have no idea who will eventually be saved, so we are to pray for God to ask of God to be merciful to all men, we are also commanded to do good to all men, especially those of the house of faith.
Jesus also says John 15
16 You did not choose Me, but I chose you and appointed you that you should go and bear fruit, and
that your fruit should remain, that whatever you ask the Father in My name He may give you. 17 These things I command you, that you love one another.
And also if you're not of the Vine Christ, then...
John 15:5
“I am the vine, you
are the branches. He who abides in Me, and I in him, bears much fruit; for without Me you can
do nothing.
And
John 6:37
All that the Father gives Me will come to Me, and the one who comes to Me I will by no means cast out.
And with many other scriptures we see the same being taught that Christ is the Lord who has ALL authority in heaven and on the earth..