C# List Elements being overwritten when adding a new element

So I am have an issue with adding a new object to a List using the .Add() call.

private static List<PointObject> _rawCoordinates = new List<PointObject>();    
private static void KMLParser(string fileLocation)
    {
        string coordinateString = "";

        XDocument document = XDocument.Load(fileLocation);
        XNamespace ns = "http://www.opengis.net/kml/2.2";

        var placemarks = document.Descendants(ns + "LineString")
                      .Select(p => new
                      {
                          Coord = p.Element(ns + "coordinates")
                      })
                      .ToList();

        foreach(var obj in placemarks)
        {
            coordinateString = Regex.Replace(obj.Coord.Value, @"\t|\n|\r| ", "");
            coordinateString = Regex.Replace(coordinateString, ",0", ",0\r");

            foreach (string substr in coordinateString.TrimEnd('\r').Split('\r'))
            {
                _rawCoordinates.Add(LineParser(substr));
            }
        }            
    }
private static PointObject LineParser(string Coordinates)
    {
        PointObject pt = new PointObject();
        int remainder;
        int index = 0; 

        foreach (string substr in Coordinates.TrimEnd('\n').Split(',', '\n'))
        {                
            remainder = index % 3;
            switch (remainder)
            {
                case 0:
                {
                    pt.SetLongitude(Math.Round(Convert.ToDouble(substr), _round));
                    Debug.WriteLine("Longitude: {0}", pt.GetLongitude());
                    index++;
                    break;
                }
                case 1:
                {
                    pt.SetLatitude(Math.Round(Convert.ToDouble(substr), _round));
                    Debug.WriteLine("Latitude: {0}", pt.GetLatitude());
                    index++;
                    break;
                }
                default:
                {
                    pt.SetBearing(0);
                    pt.SetDistance(0);
                    pt.SetIsStop(false);
                    pt.SetLayover(0);
                    break;
                }
            }
        }
        return pt;
    }

So as you can see, I am add the returned PointObject from the LineParser Method,to the _rawCoordinates List, which is defined as a List. I am initializing a new PointObject each time I call the LineParser method, and everything I found, that should have taken care of the issue. However, each time I get a returned value from that method, it overwrites all elements in my _rawCoordinates List. I am not quite sure what I am doing wrong here. Any help would be greatly appreciated.

Edit: Adding my definition of PointObject

class PointObject
{
    public static double _bearing = 0;
    public static double _distance = 0;
    public static double _longitude = 0;
    public static double _latitude = 0;
    public static bool _isStop = false;
    public static int _layoverLength = 0;

    public PointObject()
    {
        _longitude = 0;
        _latitude = 0;
        _bearing = 0;
        _distance = 0;
        _isStop = false;
        _layoverLength = 0;
    }

    public PointObject(double lon, double lat, double dist, double bear, bool stop, int layover)
    {
        _longitude = lon;
        _latitude = lat;
        _distance = dist;
        _bearing = bear;
        _isStop = stop;
        _layoverLength = layover;
    }

}

So I am assuming you are going to want me to change those from public static to just public, right? If so, I can give it a try.