It's a fair question, and it deserves an honest answer rather than a defensive one. Yes — Christians, throughout history and today, have said one thing and done another. Some of that has caused real, serious harm. That's worth being angry about, not explained away.
What Christianity claims about its people
Here's what often gets missed: Christianity has never claimed its followers are already good. It claims the opposite. Becoming a Christian starts with admitting you're a sinner who cannot save yourself — not announcing that you've arrived.
"This is a faithful saying, and worthy of all acceptation, that Christ Jesus came into the world to save sinners; of whom I am chief."1 Timothy 1:15
A hypocrite, properly speaking, is someone who claims a righteousness they don't have. Rightly understood, a Christian claims the opposite — and points away from themselves, to Christ, for the righteousness they don't have on their own.
Failure does not make harm insignificant
A Christian who fails to live like Jesus taught does not make Jesus' teaching false. It does show how far Christians can fall short of it (Romans 3:23), believers included. That is not a defence against accountability: where people have been harmed, apology, protection, and change matter more than an explanation.
This isn't a dismissive answer
It would be wrong to wave away real damage done by professing Christians as "not true hypocrisy." Jesus reserved His harshest words, by far, for religious hypocrisy — entire chapters of woe directed at leaders who looked righteous outwardly while their hearts were far from it (Matthew 23). Hypocrisy in the church grieves God more than it grieves anyone watching from outside.
Looking at Jesus as well as Christians
Whether every Christian lives consistently with what they believe is a real and important question — but it's a different question from whether what they believe is true. Jesus' life was the one that never contradicted His claims (1 Peter 2:22). The failures of His followers do not settle that question for us. They do, however, make it reasonable to ask whether a particular church is living up to what it says.