It doesn't matter how many people say it, it is wrong. I would not call them Independent Baptists if they believe they can lose their salvation.
This is what God says on this subject:
Rom 8:38 For I am persuaded, that neither death, nor life, nor angels, nor principalities, nor powers, nor things present, nor things to come,
39 Nor height, nor depth, nor any other creature, shall be able to separate us from the love of God, which is in Christ Jesus our Lord.
John 10:27 My sheep hear my voice, and I know them, and they follow me:
28 And I give unto them eternal life; an