The B1/B2 category visas are business or tourism visas for those who do not intend to immigrate. Since the EB3 visa is an immigrant visa for those seeking permanent residence, the denial of a B1/B2 visa does not affect your EB3 Unskilled Green Card process.
Similarly, the F-1 student visa is a non-immigrant visa that allows international students to enter the U.S. and study at certain institutions. Since the EB3 visa is an employment-based immigrant visa, the denial of an F-1 visa does not impact your EB3 process.
The B1/B2, F-1, and EB3 visas are distinct categories with different purposes. Therefore, any denials of B or F visas do not affect your EB3 Unskilled Green Card process.