They do not affect your EB3 Unskilled Green Card process. This is because the B1/B2 category visas are business or tourism visas for those who do not intend to immigrate. 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. However, the EB3 visa is an employment, immigrant visa intended for those actively seeking residence in the United States. These visa categories are separate with different intentions; therefore, any B or F visas denials do not affect your EB3 Unskilled Green Card process.