I know a lot of Evangelicals and Fundamentalists and the one thing you can say for certain is that they do not conform to your hate-soaked, ignorant stereotype.
Also, when you love someone you are invested in what is best for them, and you may even advise them that they should stop what is harming them. That doesn't mean you don't love them.
God made a clear delineation between Prophetic teaching and religious tradition (Key points in Red):
Matthew 15 New International Version (NIV)
1 Then some Pharisees and teachers of the law came to Jesus from Jerusalem and asked,
2 “Why do your disciples break the tradition of the elders? They don’t wash their hands before they eat!”
3 Jesus replied, “And why do you break the command of God for the sake of your tradition?
4 For God said, ‘Honor your father and mother’[a] and ‘Anyone who curses their father or mother is to be put to death.’[b.]
5 But you say that if anyone declares that what might have been used to help their father or mother is ‘devoted to God,’
6 they are not to ‘honor their father or mother’ with it. Thus you nullify the word of God for the sake of your tradition.
7 You hypocrites! Isaiah was right when he prophesied about you:
8 “‘These people honor me with their lips,
but their hearts are far from me.
9 They worship me in vain;
their teachings are merely human rules.’[c]”
10 Jesus called the crowd to him and said, “Listen and understand.
11 What goes into someone’s mouth does not defile them, but what comes out of their mouth, that is what defiles them.”
So, as part of the New Covenant Jesus taught us (as also displayed in your quotes) that there are Christians who have hardened hearts, and so worship in vain He also ended thousands of years of tradition laws like food law. Elsewhere he taught against required dress codes and other tradition laws that were not laid out by the prophets and, most important, against enforcing God's laws on others.
Saying that some Christians don't follow the Bible is not an argument against Christianity. That reality is actually IN the Bible, and those who claim to be Christian and still try to enforce Old Testament laws are approaching the faith ignorantly, as an atheist does.