Jesus was speaking to a specific group that was trying to find a reason to have him put to death. He was not speaking to a not well-liked political group, not the Jewish nation.
To this select group in the Temple area, Jesus said he was speaking the Word of God, and they should listen to him. These Jews said their father was Abraham. Jesus responded that if they were children of Abraham, then they should act as Abraham acted. Jesus said he had spoken the truth to them, the truth he heard from God--and that Abraham had never tried to kill anyone who spoke words from God.
The few people who were accosting Jesus were trying to have him killed. Jesus said he was from God, and if God was their Father they would hear and understand what he was teaching. The reason they could not was that God was not their Father, and since they were speaking lies about him and had murder in their hearts towards him, their father must be the devil, who is the father of falsehood.
I am certain the great majority of Jews--both then and now--do not speak lies nor do they have murder in their hearts.